Features and Benefits

Demonstration circuit 2609A features the LTC6952, an Ultralow Jitter, 4.5GHz PLL with 11 Outputs and JESD204B Support.

By default, the DC2609A is powered from two supplies. The 9V-12V supply input powers the onboard reference and VCO circuitry, along with the LTC6952 5V supply pin. The 4V-6V supply input powers the LTC6952 3.3V supply pins. A reduced power option is provided that allows the LTC6952’s output supply pins to connect to an LTC Silent Switcher® and the LTC6952 input supply pins to connect to a low noise LDO.

All differential inputs and six of the differential outputs are populated with 0.5” spaced SMA connectors. These outputs are AC-coupled with 50Ω transmission lines making them suitable to drive 50Ω impedance instruments. The remaining five differential outputs are terminated with 100Ω.

The LTC6952’s EZSync and SYSREF request functions are made available via the LTC6952 SPI interface or the EZS_SRQ SMA/turret connectors. The DC2609A, DC2610A, and DC2611A SMA placement was designed for ease of connection for all multi-part synchronization and SYSREF request modes.

The VTUNE and VCO SMAs can mate directly with the DC2664A VCO rider board. This options allows for a quick method to evaluate multiple VCOs.

A DC2026 USB serial controller board is used for SPI communication with the LTC6952, controlled by the supplied LTC6952Wizard software.

Markets and Technologies

Applicable Parts

Documentation & Resources


Design Tool

6.8 M
LTC6952 Wizard
The LTC6952Wizard software provides appropriate LTC6952 and LTC6953 devices settings and LTC6952 loop filter component values with a click of a button. Different system scenarios may be tried, and then each output’s time-domain waveform and frequency-domain phase noise and jitter may be plotted.

ACE Software

1.6 MB
ACE plug-in for Board.LTC6952 1.2022.36300 [Jul 06 23]
Demonstration circuit 2609A features the LTC6952, an Ultralow Jitter, 4.5GHz PLL with 11 Outputs and JESD204B Support.
157 MB
ACE Installer Software 1.29.3286.1447 [Oct 27 23]
Analysis | Control | Evaluation (ACE) Software. Requires internet access. Run this executable to install ACE onto your computer. Required before installing the plug-in(s) above. Once ACE is installed, double-click on the plug-in package to install the plug-in.

Related Hardware (3)

Related Board

Controller Boards

Extender Boards


Pricing displayed is based on 1-piece.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.